Kendrey G, Szalka A, László B, Binder L, Hollós I
Klin Wochenschr. 1975 Nov 15;53(22):1081-2. doi: 10.1007/BF01614386.
Three liver biopsies were carried out in a case of chronic active hepatitis with persistent HB-antigenemia. Virus-cores could not be detected in the liver cell nuclei by electron microscopy before immunosuppressive therapy. Intranuclear, ring-shaped virus-cores of 20-25 nm diameter appeared in almost every hepatocyte examined during immunosuppression.